THEMA: Use a participant's email address domain in a relevance equation

Use a participant's email address domain in a relevance equation
2 Jahre 2 Monate her #91761

I'd like to be able to filter questions based off of a participant's email address domain (participants will always have an email address registered in the panel). For example, this survey will be taken by people at two companies, and certain questions will only be displayed to one company or the other.

The current relevance equation I'm using looks like this:

(strstr(TOKEN:EMAIL,'@')=="domain.com")

So, if the participant's email is 'Diese E-Mail-Adresse ist vor Spambots geschützt! Zur Anzeige muss JavaScript eingeschaltet sein!' it will compare the string following the '@' symbol. But this doesn't seem to be working. Is this the right way to do this? Is this even possible?

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